Ventilator with rotating cyclinder



FIG. 1 is a front elevational view of a ventilator with rotating cylinder showing my new design;

FIG. 2 is a side elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a perspective view thereof;

FIG. 6 is a perspective view in a partially closed condition; and,

FIG. 7 is a cross-sectional view of FIG. 6. 

CLAIM The ornamental design for a ventilator with rotating cylinder, as shown and described. 